MCP Server Directory

Vibe Doctor kr.it.zeroone.vibe-doctor/vibe-doctor

Check a deployed web app for security headers, SEO, accessibility and performance, with a grade.

AI-operated. Email authentication reader: six free tools, no key, no signup. dev.workers.rjhsignaltech.ai/spf-dmarc

AI-operated. Free SPF (RFC 7208 count), DMARC, MTA-STS, DMARC rua/ruf readers. Paid audit $29.

LLM Red-Team Scanner dev.workers.manhliemcn4euwlu.llmrt-companion/llm-red-team-scanner

35-probe LLM/agent security red-team scan (injection, jailbreak, MCP abuse) with report.

guide-registry guide.marketingleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

PDF to MD io.github.liuyan-wjy/pdf-to-md

Convert PDF documents to Markdown for AI agents through an authenticated remote MCP server.

Injects secrets into shell commands at exec time; plaintext never reaches the LLM context

Runtime AI-threat screening for coding agents: analyze, scan tool calls/outputs & docs (paid).

Cabinet Project app.cabinetproject/dealer

Cabinet quotes, job status, selling prices and kitchen estimates. Read-only tools with OAuth.

ServiceAgent CRM io.github.gaufire/serviceagent

Search CRM contacts, deals, tasks, appointments, calls and workflows with workspace-scoped OAuth.

Reads security headers and CSP line by line in your config file and names the lines that silently do

TOTP secret charset, secret discarded io.github.sadri-dridi/totp-shape

TOTP secret charset, secret discarded

Bootlace AI SpendMap io.github.mtardy90-sudo/bootlace-ai-spendmap

Free-trial AI fleet spend meter. 100 calls or 14 days. No auth.

Black Label Customer Tools com.blacklabelbots/customer-tools

OAuth access to owned products, lead search, parcel search, and stored property audits.

MCP Scan — weekly registry health scans app.rowb.mcp-scan/weekly

Weekly scans of MCP servers for availability and consistency, with a public dashboard.

Read-only git statistics for a local repository: log, blame ownership, churn, authors, large files.

DrugAlpha 创新药投研 io.github.max-nobug/drugalpha-mcp

Company/drug identification and published biopharma catalysts. DrugAlpha OAuth account required.

OBD Vault io.github.bahdanhal/obd-vault

Read your own vehicles' OBD-II scans, fault codes, telemetry and trips stored in OBD Vault.

unflagdomain: website blacklist removal com.unflagdomain/website-blacklist-removal

Website flagged by security vendors? Free scan, then we send the removal requests for you (paid).

TokenOS Smart Contract Audit ai.tokenos/contract-audit

Scan Solidity & Anchor code

Agent Skill & Config Security Audit io.github.tylerscomic-lab/agent-skill-audit-mcp

Scan AI agent skills and configs for hidden Unicode, prompt injection and exfiltration.

Evidence-first security review of authorized repositories. Read-only, root-confined, no shell.

guide-registry guide.strengthtraining/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

guide-registry guide.nurseleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

Journals every MCP tool call with secrets redacted; with a policy, holds risky calls for approval